Acetabular cup



FIG. 1 is a top plan view of an acetabular cup showing my new design;

FIG. 2 is a bottom plan view of the acetabular cup of FIG. 1;

FIG. 3 is a side elevational view of the acetabular cup of FIG. 1;

FIG. 4 is a sectional view of the acetabular cup taken along lines 4--4 of FIG. 1. 

The ornamental design for an acetabular cup, as shown and described. 